首页|A Dielectric Ink Combining Acrylate and Cyanate Moieties for Inkjet 3D Printing with Good Thermal Stability
A Dielectric Ink Combining Acrylate and Cyanate Moieties for Inkjet 3D Printing with Good Thermal Stability
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Inkjet 3D printing has potential in the additive manufacturing of electronic circuits and devices.However,inks that can be used for printing layers with T5％＞300 ℃ or hardness＞200 MPa have been rarely reported.Cyanate ester(CE)polymers have excellent thermal stability,high strength,and low shrinkage compared to other common dielectric inks for inkjet 3D printing,but cannot be quickly shaped by ultraviolet(UV)irradiation or thermal treatment.Combining CEs with UV-curable monomers may be a possible way to accelerate crosslinking,but there are challenges from the adverse effects of the dilution of both monomers.In this study,dielectric inks with acrylate and cyanate moieties were devel-oped.The low viscosity and surface tension of the CE precursor(Bisphenol E cyanate ester)were combined with photocurable acrylate diluent monomers and cross-linker to realize an ink suitable for inkjet 3D printing.An internal dual three-dimensional cross-linked network structure resin was prepared by a combination of photocuring and thermal curing with T5％up to 326.69 ℃,hardness up to 431.84 MPa,dielectric constant of 2.70 at 8 GHz,and shrinkage of 1.64％.The developed dielectric inks can be applied to the 3D printing of printed circuit boards and other elec-tronic devices that require dielectric properties.
Yi-Xuan Li、Liang-Ying Wu、Yan Yang、Yao-Zhong Lu、Zhong-Ying Ji、Yu-Xiong Guo、Xiao-Long Wang、Qiao-Sheng Pu
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State Key Laboratory of Applied Organic Chemistry,College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China
State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Lanzhou 730000,China
Lanzhou Traditional Chinese Medicine Hospital of Orthopedics and Traumatology,Lanzhou 730000,China
Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai,Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering,Yantai264006,China
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国家重点研发计划中国科学院战略规划重点项目国家自然科学基金Western Light Project of Chinese Academy of SciencesOasis Scholar of Shihezi UniversityCentral Government to Guide Local Technological Development
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